ISO 4056:1978被替代
Polyethylene (pe) Pipes And Fittings - Designation Of Polyethylene, Based On Nominal Density And Melt Flow Index
出版：International Organization for Standardization
专家解读视频
1978
NFT 54 044:1978 - Similar
SAC GB/T 9642:1988 - Identical
SNV ISO 4056:1978 - Identical
SAC GB/T 9642 : 1988 - Identical
SNV ISO 4056 : 1978 - Identical
NFT 54 044 : 1978 - Similar to
SAC GB/T 9642 : 1988 - Identical
SNV ISO 4056 : 1978 - Identical
NFT 54 044 : 1978 - Similar to
